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What is PECS (Producer Extends Consumer Super)?
I came across PECS (short for Producer extends and Consumer super ) while reading up on generics.
14 Answers
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Is there a difference between using a dict literal and a dict constructor?
Using PyCharm, I noticed it offers to convert a dict literal :
10 Answers
10
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When & why to use delegates? [duplicate]
I'm relatively new in C#, & I'm wondering when to use Delegates appropriately .
they are widely used in events declaration, but when should I use them in my own code and why are they useful? why not to use something else?
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What does a tilde do when it precedes an expression?
I saw it in an answer, and I've never seen it before.
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demystify Flask app.secret_key
If app.secret_key isn't set, Flask will not allow you to set or access the session dictionary.
2 Answers
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Simulator or Emulator? What is the difference?
While I understand what simulation and emulation mean in general, I almost always get confused about them. Assume that I create a piece of software that mimics existing hardware/software, what should I call it? A simulator or an emulator?
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Break a previous commit into multiple commits
Without creating a branch and doing a bunch of funky work on a new branch, is it possible to break a single commit into a few different commits after it's been committed to the local repository?
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What's the difference between identifying and non-identifying relationships?
I haven't been able to fully grasp the differences. Can you describe both concepts and use real world examples?
15 Answers
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How to calculate moving average using NumPy?
There seems to be no function that simply calculates the moving average on numpy/scipy, leading to convoluted solutions .
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What does OSGi solve?
I've read on Wikipedia and other sites about OSGi , but I don't really see the big picture. It says that it's a component-based platform, and that you can reload modules at runtime. Also the "practical example" given everywhere is the Eclipse Plugin Framework.
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